77295-70-6Relevant academic research and scientific papers
Direct Synthesis of α-Allenols from TMS-Protected Alkynes and Aldehydes Mediated by Tetrabutylammonium Fluoride
Huang, Xiaojun,Bugarin, Alejandro
, p. 12696 - 12700 (2016/08/30)
A unique chemoselective synthesis of α-allenic alcohols is presented. Tetrabutylammonium fluoride (TBAF) mediated this transformation under mild reaction conditions. A range of functional groups is well-tolerated in this reaction, while affording adducts
CHBr3/TiCl4/Mg as an unusual nucleophilic CBr 2 carbenoid: Effective and chemoselective dibromomethylenation of aldehydes and ketones
Bhorge, Yeshwant Ramchandra,Chang, Cheng-Ta,Chang, Su-Haur,Yan, Tu-Hsin
experimental part, p. 4805 - 4810 (2012/10/08)
We report that instead of using CBr4, CHBr3 can serve as a highly nucleophilic dibromomethylene carbenoid in chemoselective carbonyl dibromomethylenation. Successful application of the dibromomethylenation to various carbonyl compoun
Reactions with Phosphinealkylenes, XXXIX. - New Methods for the Preparation of 1-Bromoacetylenes and Enynes
Bestmann, Hans Juergen,Frey, Herbert
, p. 2061 - 2071 (2007/10/02)
1,1-Dibromoolefins 4 are obtained in good yield from the reaction of aldehydes 1 with triphenylphosphane (2) and carbon tetrabromide (3).Reaction of 4 with three moles of methylene(triphenyl)phosphorane (8) leads to the propargylidene(triphenyl)phosphoranes 11 which react with aldehydes to give the enynes 13.The ylides 11 can also prepared via the reaction of bromoacetylenes 7, which can be obtained from 4, with two moles of 8.This reaction sequence allows the synthesis of new retinoids with enyne structures from retinal.
